Hi, I'm a new player here. I was wondering is there any way to remove the planets that you have scanned but have not occupied from your list so it makes it easier to scan?

There is an artifact that you can get to take one off. So building up your artifact points and spend a bunch at once. You might get lucky, but you never know. I do think it needs a lot of points to even stand a chance of being gotten.

Well how do i increase my chances of finding better planets? i'm already tired of all the crab planets i get

Get better sensors to increase your chance of finding planets. Better scanner take up a lot of space, but even on your ship for a short amount of time they can be worth it to find planets.

Once you get a relaible income id reccomend stacking scanners (and taking everthing other then in use cores off) only when doing a scan blitz, then destroying them.